All weighing systems shall be calibrated and sealed F1... by the competent authorities of F2a fisheries administration.

The natural or legal person responsible for the weighing system shall maintain a record of calibration.

Where the weighing is carried out on a conveyor belt system a visible counter shall be fitted that records the cumulative total of the weight. The reading of the counter at the start of the weighing operation as well as the cumulative total shall be recorded. All use of the system shall be recorded by the natural or legal person responsible for the weighing in the weighing logbook.